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Documentation fixes, old SSP driver removed. 

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@1451 35acf78f-673a-0410-8e92-d51de3d6d3f4
This commit is contained in:
gdisirio 2009-12-21 08:12:34 +00:00
parent ae7fab31a0
commit 84235c1c49
4 changed files with 16 additions and 194 deletions
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132
os/hal/platforms/LPC214x/lpc214x_ssp.c
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@ -1,132 +0,0 @@
/*
ChibiOS/RT - Copyright (C) 2006-2007 Giovanni Di Sirio.
This file is part of ChibiOS/RT.
ChibiOS/RT is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
ChibiOS/RT is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @file LPC214x/lpc214x_ssp.c
* @brief LPC214x SSP driver code.
* @addtogroup LPC214x_SSP
* @{
*/
#include "ch.h"
#include "hal.h"
#include "lpc214x_ssp.h"
#if LPC214x_SSP_USE_MUTEX
static Semaphore me;
#endif
/**
* @brief Aquires access to the SSP bus.
* @note This function also handles the mutual exclusion on the SSP bus if
* the @p LPC214x_SSP_USE_MUTEX option is enabled.
*/
void sspAcquireBus(void) {
#if LPC214x_SSP_USE_MUTEX
chSemWait(&me);
#endif
palClearPad(IOPORT1, 20);
}
/**
* @brief Releases the SSP bus.
* @note This function also handles the mutual exclusion on the SSP bus if
* the @p LPC214x_SSP_USE_MUTEX option is enabled.
*/
void sspReleaseBus(void) {
palClearPad(IOPORT1, 20);
#if LPC214x_SSP_USE_MUTEX
chSemSignal(&me);
#endif
}
/**
* @brief Synchronous SSP transfer.
* @param[in] in pointer to the incoming data buffer, if this parameter is set
* to @p NULL then the incoming data is discarded
* @param[out] out pointer to the outgoing data buffer, if this parameter is
* set to @p NULL then 0xFF bytes will be output
* @param[in] n the number of bytes to be transferred
* @note The transfer is performed in a software loop and is not interrupt
* driven for performance reasons, this function should be invoked
* by a low priority thread in order to "play nice" with the
* rest of the system. This kind of peripheral would really need a
* dedicated DMA channel.
*/
void sspRW(uint8_t *in, uint8_t *out, size_t n) {
int icnt, ocnt;
SSP *ssp = SSPBase;
icnt = ocnt = n;
while (icnt) {
if (ssp->SSP_SR & SR_RNE) {
if (in)
*in++ = ssp->SSP_DR;
else
ssp->SSP_DR;
icnt--;
continue; /* Priority over transmission. */
}
if (ocnt && (ssp->SSP_SR & SR_TNF)) {
if (out)
ssp->SSP_DR = *out++;
else
ssp->SSP_DR = 0xFF;
ocnt--;
}
}
}
/**
* @brief SSP setup.
* @param[in] cpsr the value for the @p CPSR register
* @param[in] cr0 the value for the @p CR0 register
* @param[in] cr1 the value for the @p CR1 register
*/
void ssp_setup(int cpsr, int cr0, int cr1) {
SSP *ssp = SSPBase;
ssp->SSP_CR1 = 0;
ssp->SSP_CR0 = cr0;
ssp->SSP_CPSR = cpsr;
ssp->SSP_CR1 = cr1 | CR1_SSE;
}
/**
* @brief SSP subsystem initialization.
*/
void ssp_init(void) {
/* Enables the SPI1 clock */
PCONP = (PCONP & PCALL) | PCSPI1;
/* Clock = PCLK / 2 (fastest). */
ssp_setup(2, CR0_DSS8BIT | CR0_FRFSPI | CR0_CLOCKRATE(0), 0);
#if LPC214x_SSP_USE_MUTEX
chSemInit(&me, 1);
#endif
}
/** @} */

54
os/hal/platforms/LPC214x/lpc214x_ssp.h
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@ -1,54 +0,0 @@
/*
ChibiOS/RT - Copyright (C) 2006-2007 Giovanni Di Sirio.
This file is part of ChibiOS/RT.
ChibiOS/RT is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
ChibiOS/RT is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @file LPC214x/lpc214x_ssp.h
* @brief LPC214x SSP driver macros and structures.
* @addtogroup LPC214x_SSP
* @{
*/
#ifndef _LPC214x_SSP_H_
#define _LPC214x_SSP_H_
/**
* @brief SSP bus mutual exclusion control.
* @details Configuration parameter, if set to @p TRUE enforces mutual
* exclusion when invoking @p sspAcquireBus() and @p sspReleaseBus().
* @note The internally used synchronization mechanism is a @p Semaphore.
*/
#if !defined(LPC214x_SSP_USE_MUTEX) || defined(__DOXYGEN__)
#define LPC214x_SSP_USE_MUTEX TRUE
#endif
#ifdef __cplusplus
}
#endif
void ssp_init(void);
void ssp_setup(int cpsr, int cr0, int cr1);
void sspAcquireBus(void);
void sspReleaseBus(void);
void sspRW(uint8_t *in, uint8_t *out, size_t n);
#ifdef __cplusplus
}
#endif
#endif /* _LPC214x_SSP_H_*/
/** @} */

11
os/hal/platforms/LPC214x/platform.dox
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@ -24,12 +24,10 @@
* - VIC support code. * - VIC support code.
* - I/O ports driver. * - I/O ports driver.
* - Buffered, interrupt driven, serial driver. * - Buffered, interrupt driven, serial driver.
* - SSP driver. * - SPI driver.
* - A MMC/SD demo driver.
* - A timer driven buzzer demo driver.
* - A minimal demo, useful as project template.
* - A demo supporting the kernel test suite. * - A demo supporting the kernel test suite.
* - A C++ demo supporting the kernel test suite. * - A C++ demo supporting the kernel test suite.
* - A demo integrating ChibiOS/RT with FatFS.
* . * .
* @ingroup ARM7 * @ingroup ARM7
*/ */
@ -83,9 +81,10 @@
*/ */
/** /**
* @defgroup LPC214x_SSP LPC214x SSP Support * @defgroup LPC214x_SPI LPC214x SPI Support
* @brief SSP peripheral support. * @brief SSP peripheral support.
* @details This SPI driver supports the LPC214x SSP peripheral. * @details The SPI driver supports the LPC214x SSP, the driver works in
* polling mode.
* *
* @ingroup LPC214x * @ingroup LPC214x
*/ */

13
os/hal/platforms/STM32/platform.dox
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@ -93,7 +93,7 @@
/** /**
* @defgroup STM32_ADC STM32 ADC Support * @defgroup STM32_ADC STM32 ADC Support
* @brief ADC peripherals support. * @brief ADC peripherals support.
* @details The serial driver supports the STM32 ADCs using DMA channels for * @details The ADC driver supports the STM32 ADCs using DMA channels for
* improved performance. * improved performance.
* *
* @ingroup STM32 * @ingroup STM32
@ -107,10 +107,19 @@
* @ingroup STM32 * @ingroup STM32
*/ */
/**
* @defgroup STM32_PWM STM32 PWM Support
* @brief TIMx peripherals as PWM generators support.
* @details The PWM driver supports the STM32 TIMx units as PWM generators.
*
* @ingroup STM32
*/
/** /**
* @defgroup STM32_SPI STM32 SPI Support * @defgroup STM32_SPI STM32 SPI Support
* @brief SPI peripherals support. * @brief SPI peripherals support.
* @details The serial driver supports the STM32 SPIs using DMA channels for * @details The SPI driver supports the STM32 SPIs using DMA channels for
* improved performance. * improved performance.
* *
* @ingroup STM32 * @ingroup STM32